Improvement in spring bed-bottoms



UNITED STATES PATENT CJEEIcEo N PARKER WELLS, OF LYNN, MASSACHUSETTS.

IMPROVEMENT IN SPRING BED-BOTTOMS.

Specification forming part of Letters Patent No. 146,626, dated January.20, 1874; application filed December 10, 1873.

To all 'whom it may concern:

Be it known that I, PARKER WELLS, of Lynn, in the county of Essex, Stateof Massachusetts, have invented a certain new and use- `ful Improvementin Spring-Beds, of which the entgules ofthe drawing.

My invention relates to that class of springbeds which `are providedwith holsters; and consists of .a novel construction and arrangement ofthe parts, as hereinafter more fully set forth, the object being toovercome theimperfections existing in ordinary beds ot this description.

In Fig. l, A is the main rail ofthe bed. B is the head, and II the foot,rail 5 C, a short or auxiliary rail, connected by the hinge c to the i.main rail; D, a gravitating serrated lever or "drag7 loosely attached tothe short rail; E, a frame-work or section of the bed provided with thesprings m x, and Inounted on the auxiliary rail C, being also connectedby the link F to the main rail A, as shown. A cord, d, Fig:2, isattachedto the lever D, and passes through the guides Gr and Z. Theframe E,

Fig. 3, is fitted to slide in a groove in the auxiliary rail C, in whichit is retained by the screw e, working in" the slot K. A dog or stop, c,Fig. 2, is attached to the rail A, with which stop the teeth of thedrag-lever D engage.

From the foregoing, the nature and operation of my improvement will bereadily nnderstood by all conversant with such matters. 'lhe rail Cbeing at its lowest point, or parallel .with the rail A, and the bedbeing level, or

only of the bed is shown, the opposite side being precisely the same,there being the requisite number of springs connected by the properrails, as at i Z, Fig. l.

In ordinary spring-beds, in which a bolster is created by raising thehead of the same,

there is a tendency to cramp7 the mattress at a point between thesl'nings c and N, Fig. 1, which renders it impossible to form a goodbolster, and wears out and destroys the mattress rapidly. Theseobjections and difficulties are entirely obviated by my invention, Atheframe E being caused by the link F to slide in nvard on the rail G assaid rail is raised, thus always keeping the springs m .fo in a properposition in relation to the springsrN O, at whatsoever elevation` thebolster is fixed.

rlhe additional cost of constructing a springbed embodying myimprovement is very trifling, and its advantages, especially as an in`valid-bed, are too numerous and apparent to need rehearsal. v

Having thus described my invention, what l claim isl. In combinationwith the main rail A, the hinged rail C, provided with the sliding frameE and link F, substantially as and for the purposes specified. y

2. In a bedstead provided with a sliding bolster, as described, theserrated lever l), for adjusting said bolster vertically, substantiallyas set forth and specified.

PARKER YVELLS.

Witnesses:

C. A. SHAW, H. E. METCALF.

